Dialogic 6.2 User Manual
Page 237
Failover Based on Telephony Cause Codes
November 2009
237
482
Loop detected
25
484
Address incomplete
28
485
Ambiguous
1
486
Busy here
17
487
Request Cancelled
21
488
Not acceptable here
31
500
Internal server error
41
501
Not implemented
79
502
Bad gateway
38
503
Service unavailable
41
504
Server time-out
102
505
Version not supported
127
513
Message Too Large
127
600
Busy everywhere
17
603
Decline
21
604
Does not exist anywhere
1
606
Not acceptable
31
SIP Cause
Code
Description
Q.931 Cause Code